Those mystics who hastily scorn science as being anti-spiritual and condemn modern civilization as being pro-materialist should stop to think how much wider service to mankind men like Jesus and Buddha could have rendered had the radio, the newspaper, the inexpensive book, the cinema, and the railway train been at their command. Let them consider how, with the airplane to travel in, Jesus could have brought thousands of disciples in each European and North African country under his immediate personal influence and Buddha could have brought hundreds of thousands more throughout Asia under his own. The inventions of man's ingenuity can be directed to give an upward trend to his spiritual evolution just as they have been directed to give a downward trend to it. All life bears this twofold possibility. We do not refuse light because it also brings shadows. We also should not refuse inventions merely because they increase the tempo of our existence too quickly.